the sum of 1st 15 terms of 1+3+5...is
Answers
Answered by
1
Answer:
1+3+5+7+9+11+13+15+17+19+21+23+25+27+29
Answered by
0
Answer:
Step-by-step explanation:
Given,
a= 1
d = 2
Sn = n/2(2a+n-1)d
15/2[2(1)+(15-1)2]
7.5[2+28]
7.5*30 = 225.
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